Vegas Golden Knights' Nicolas Hague (4) and Brett Howden (21) check Calgary Flames' Joel Farabee (86) during the third period of an NHL hockey game in Calgary.

Calgary Flames' Morgan Frost (16) celebrates his game-winning goal with teammates during an overtime shootout of an NHL hockey game against the Vegas Golden Knights in Calgary.

Vegas Golden Knights' Ben Hutton (17) checks Calgary Flames' Nazem Kadri (91) into goalie Ilya Samsonov (35) during the second period of an NHL hockey game in Calgary, Alberta.

Calgary Flames goalie Dustin Wolf (32) gets his stick on a shot from the Vegas Golden Knights during the second period of an NHL hockey game in Calgary, Alberta.

Vegas Golden Knights' William Karlsson (71) and Calgary Flames' MacKenzie Weegar (52) chase the play during the second period of an NHL hockey game in Calgary, Alberta.

Vegas Golden Knights' Ben Hutton (71) checks Calgary Flames' Adam Klapka (43) in front of goalie Ilya Samsonov (35) during the second period of an NHL hockey game in Calgary, Alberta.

Vegas Golden Knights' Tanner Pearson (70) battles for the puck with Calgary Flames' Rasmus Andersson (4) during the first period of an NHL hockey game in Calgary, Alberta.

Vegas Golden Knights' Tomas Hertl (48) celebrates his team's goal as Calgary Flames goalie Dustin Wolf (32) reacts during the first period of an NHL hockey game in Calgary, Alberta.

Vegas Golden Knights' William Karlsson (71) checks Calgary Flames' Adam Klapka (43) as the puck flies past during the first period of an NHL hockey game in Calgary, Alberta.

Vegas Golden Knights' Pavel Dorofeyev (16) celebrates his goal with teammates during the first period of an NHL hockey game against the Calgary Flames in Calgary, Alberta.